The `'` character is being escaped in the Assignees and Reviewers sidebar dropdowns

Sometimes, the user's name is being passed through sprintf. By default, sprintf uses Lodash's escape function on the content.

If the user has a special character, escape mangles it.

Assignees	Reviewers

In another issue about the Discussion Resolved By tooltip, the simple solution was to just stop escaping these kinds of characters. It was safe to do so because the way that content was used could only be interpreted as text, never as HTML/script.

That may not be the case in these list items.